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Forum: Geometry
Re: Question Can G4EllipticalTube be used with G4PVParameterized? (Michael H. Kelsey)
Date: 14 Feb, 2018
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Mike,

not all shapes can be parameterised (or divided/replicated); elliptical-tube cannot be
parameterised. The list of shapes that can be parameterised is reported in the
G4VPVParameterisation class, as you have already realised.

Cheers, Gabriele

On Thu, 15 Feb 2018 06:20:03 GMT, Michael H. Kelsey wrote:
> I am trying to implement a detector sensor mask, in the form of a
> pattern of aluminum ellipses (QET fins) on a germanium crystal. The
> obvious way to do this is with G4PVParameterised, However, I note that
> G4VPVParameterisation does not include G4EllipticalTube as one of the
> solids which can be used as argument to ComputeDimensions().
> Does this mean that I _cannot_ use ellipses for this situation, or just
> that I can't implement ComputeDimensions() (I wasn't planning to do so,
> as all the pads are identical).
>   -- Michael Kelsey

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